Chamberlain PD432DM 1/2 HP Garage Door Opener User Manual


 
8
To prevent INJURY from pinching, keep hands and
fi ngers away from the joints while assembling the rail.
ASSEMBLY STEP 1
Assemble the Rail
To avoid installation diffi culties, do not run the garage
door opener until instructed to do so.
1. Open the rail carton and remove the contents onto
a level work surface. Keep it clean and free of debris
while you are working.
2. Identify the rail sections and orient the sections on a
fl at surface as shown. The back rail has a black gear on
one end. The header rail has a black plastic rack inside
the rail on the screw. The remaining section is the
center rail.
NOTE: Use caution when handling the center rail section.
The screw can slip out if the section is tipped up too far.
HARDWARE SHOWN ACTUAL SIZE
Hex Bolt 1/4-20x7/16"
Remove Cardboard Packing
Remove Cardboard Packing
Remove Cardboard Packing
Hanging Brackets
Rail Support Braces
Straight Door Arm
Header Rail
Brackets
Rail Assembly
Rail Assembly
Sprocket Coupling
Rail Assembly Carton
Hex Bolts
1/4-20x7/16"
Hex Bolts
1/4-20x7/16"
Hex Bolts
1/4-20x7/16"
Header Rail
Hex Bolts
1/4-20x7/16"
Center Rail
Back Rail